Author
Infobase,
21
Camille S. DeBose (Firm)
12
SpringerLink (Online service)
9
Public Broadcasting Service (U.S.)
5
Geological Survey (U.S.),
3
Abbe, Cleveland, Jr., 1872-1934,
1
American Geosciences Institute
1
American Public Television
1
Australian Broadcasting Corporation
1
Baets, Kenneth de,
1
Brooks, Alfred H. 1871-1924,
1
Espresso TV (Firm)
1
Films for the Humanities & Sciences (Firm)
1
Goode, Richard Urquhart, 1858-1903,
1
Gregory, Herbert E. 1869-1952,
1
Harder, Edmund Cecil, 1882-
1
Infobase
1
Klug, Christian, 1969-
1
Korn, Dieter,
1
Kruta, Isabelle,
1
Lanza, Roberto, Prof. Dr
1
Malcuit, Robert J.,
1
Mapes, Royal H.,
1
Markner-Jäger, Brigitte
1
Mazzoni, Elizabeth,
1
Meloni, Antonio
1
Rabassa, Jorge,
1
Rashid, Towhida,
1
Sobiech, Cilli,
1
Thiebes, Benni
1
Wan, Tianfeng
1